Question

1. A soccer player kicks a ball, changing its momentum by 11 kg. m/s, The net force on the ball is 910 N.

How long does the soccer player maintain contact with the ball?

Answer 1

0.012 s

Step-by-step explanation:

Impulse is equal to change in momentum. Impulse is the product of force and time hence I=Ft and making t the subject of the formula then

`t=\frac {I}{F}`

Substituting 910 for F and 11 kg.m/s for I then time of impulse will be

`t=\frac {11}{910}=0.0120879120879120879120879120879120879120s\approx 0.012 s`

Therefore, the time is approximately 0.012 s